发明名称 Hall sensor for stress and temperature measurements in addition to magnetic field measurement
摘要 A Hall sensor has a Hall plate having terminals for supplying a supply current and for tapping a Hall voltage. A Hall circuit connects the terminals. A device for orthogonally switching the supply current and the Hall voltage between a first set of the terminals and a second set of the terminals, arranged orthogonally to the first set of terminals, is provided wherein a geometry of the Hall plate is identical for the first and second sets of the terminals. A summation device is configured to receive measured Hall voltage values from the first and second sets of the terminals and to determine an offset-compensated Hall voltage value. The summation device is configured to receive and/or process the Hall voltage values of the first and second set of the terminals such that, for stress measurement, a portion of the Hall voltage values resulting from the magnetic field acting on the Hall sensor are compensated and only the portion of the Hall voltage values resulting from the offset are measured. A temperature measurement is possible wherein at least one current of the Hall sensor circuit having a predetermined temperature coefficient is used whose voltage drop at the resistor of the Hall circuitry is determined for temperature measurement.
申请公布号 US6362618(B1) 申请公布日期 2002.03.26
申请号 US19990467150 申请日期 1999.12.20
申请人 MICRONAS GMBH 发明人 MOTZ MARIO
分类号 G01R33/07;(IPC1-7):G01R33/06 主分类号 G01R33/07
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